This post is for anyone who podcasts, videocasts, or otherwise relies for their living (or hobby) on recording their voice on their computer. It’s particularly addressed to folks like myself who record screencasts, in which you’re teaching people to use software, oftentimes including demos in which you’re typing live while recording your screencast.
The motivation for this post is the fact that I was listening to a video tutorial (I won’t share where, or who authored it, as that’s not really the point). From the sound quality of the video, it sounds as though the author is using either a built-in mic on their laptop, or perhaps an inexpensive USB mic on a desktop stand. There’s a fair amount of ambient echo, which is typical for rooms that haven’t been acoustically treated, and which is usually perfectly fine.
Noise, Noise, Noise
What’s not fine is hearing repeated thudding each time the author hits their desk. And the thud-thud-thud that comes with every keystroke during the demos. Understand, the point is not to knock the author of this course. It’s to point out that there’s a very easy way to avoid this…a boom. OK, so this model probably isn’t sold anymore…
A microphone boom arm helps isolate your microphone from sources of noise, including inadvertent taps and bangs on your desk, as well as keyboard noise transmitted through the desk. You can get some of this benefit from a shock or spider mount, but a boom does the best job at isolating vibrations, which is why they’re used by radio professionals, who rely on good sound for their living.
Signal is King
The other big thing that a boom mic can do is improve the signal (i.e. your voice) by allowing you to place the mic closer to the source, namely you. With a boom mic, you can place the mic within a few inches of your face, which will ensure that what you record contains more of your voice, and less of whatever else is going on (echos, outside noises, etc.). If you don’t have a pop filter, just speak slightly off-axis to the mic (turn slightly to the left or right), and you should be able to get a great signal.
Is It Worth the Cost?
The boom I use costs right around $90. If you podcast/videocast as a hobby, that may be more than you’d like to spend. In that case, I’d recommend looking into cheaper solutions, like a spider mount (and to be clear, a spider mount is a must even if you do use a boom). But if you get paid for recording your voice, a boom is a seriously worthwhile expenditure. If your audio has problems, most people won’t tell you that directly. They may not even notice it consciously. But they’ll probably stop listening.
And in addition to the improvements in audio quality a boom can bring, it also adds convenience. Having my mic on a boom means that there’s one less thing cluttering my desk. When I’m done recording a given podcast or video, I just swivel it up out of the way.
I’d love to hear from other podcasters and videocasters about any tips you have for getting the most out of your gear. Drop a comment below, or feel free to use my contact form.